diff options
Diffstat (limited to 'contrib/subtree/t')
| -rw-r--r-- | contrib/subtree/t/Makefile | 85 | ||||
| -rwxr-xr-x | contrib/subtree/t/t7900-subtree.sh | 1526 |
2 files changed, 1611 insertions, 0 deletions
diff --git a/contrib/subtree/t/Makefile b/contrib/subtree/t/Makefile new file mode 100644 index 0000000..093399c --- /dev/null +++ b/contrib/subtree/t/Makefile @@ -0,0 +1,85 @@ +# Run tests +# +# Copyright (c) 2005 Junio C Hamano +# + +-include ../../../config.mak.autogen +-include ../../../config.mak + +#GIT_TEST_OPTS=--verbose --debug +SHELL_PATH ?= $(SHELL) +PERL_PATH ?= /usr/bin/perl +TAR ?= $(TAR) +RM ?= rm -f +PROVE ?= prove +DEFAULT_TEST_TARGET ?= test +TEST_LINT ?= test-lint + +ifdef TEST_OUTPUT_DIRECTORY +TEST_RESULTS_DIRECTORY = $(TEST_OUTPUT_DIRECTORY)/test-results +else +TEST_RESULTS_DIRECTORY = ../../../t/test-results +endif + +# Shell quote; +SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH)) +PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH)) +TEST_RESULTS_DIRECTORY_SQ = $(subst ','\'',$(TEST_RESULTS_DIRECTORY)) + +T = $(sort $(wildcard t[0-9][0-9][0-9][0-9]-*.sh)) +TSVN = $(sort $(wildcard t91[0-9][0-9]-*.sh)) +TGITWEB = $(sort $(wildcard t95[0-9][0-9]-*.sh)) +THELPERS = $(sort $(filter-out $(T),$(wildcard *.sh))) + +all: $(DEFAULT_TEST_TARGET) + +test: pre-clean $(TEST_LINT) + $(MAKE) aggregate-results-and-cleanup + +prove: pre-clean $(TEST_LINT) + @echo "*** prove ***"; GIT_CONFIG=.git/config $(PROVE) --exec '$(SHELL_PATH_SQ)' $(GIT_PROVE_OPTS) $(T) :: $(GIT_TEST_OPTS) + $(MAKE) clean-except-prove-cache + +$(T): + @echo "*** $@ ***"; GIT_CONFIG=.git/config '$(SHELL_PATH_SQ)' $@ $(GIT_TEST_OPTS) + +pre-clean: + $(RM) -r '$(TEST_RESULTS_DIRECTORY_SQ)' + +clean-except-prove-cache: + $(RM) -r 'trash directory'.* + $(RM) -r valgrind/bin + +clean: clean-except-prove-cache + $(RM) -r '$(TEST_RESULTS_DIRECTORY_SQ)' + $(RM) .prove + +test-lint: test-lint-duplicates test-lint-executable test-lint-shell-syntax + +test-lint-duplicates: + @dups=`echo $(T) | tr ' ' '\n' | sed 's/-.*//' | sort | uniq -d` && \ + test -z "$$dups" || { \ + echo >&2 "duplicate test numbers:" $$dups; exit 1; } + +test-lint-executable: + @bad=`for i in $(T); do test -x "$$i" || echo $$i; done` && \ + test -z "$$bad" || { \ + echo >&2 "non-executable tests:" $$bad; exit 1; } + +test-lint-shell-syntax: + @'$(PERL_PATH_SQ)' ../../../t/check-non-portable-shell.pl $(T) $(THELPERS) + +aggregate-results-and-cleanup: $(T) + $(MAKE) aggregate-results + $(MAKE) clean + +aggregate-results: + @'$(SHELL_PATH_SQ)' ../../../t/aggregate-results.sh '$(TEST_RESULTS_DIRECTORY_SQ)' + +valgrind: + $(MAKE) GIT_TEST_OPTS="$(GIT_TEST_OPTS) --valgrind" + +test-results: + mkdir -p test-results + +.PHONY: pre-clean $(T) aggregate-results clean valgrind diff --git a/contrib/subtree/t/t7900-subtree.sh b/contrib/subtree/t/t7900-subtree.sh new file mode 100755 index 0000000..49a21dd --- /dev/null +++ b/contrib/subtree/t/t7900-subtree.sh @@ -0,0 +1,1526 @@ +#!/bin/sh +# +# Copyright (c) 2012 Avery Pennaraum +# Copyright (c) 2015 Alexey Shumkin +# +test_description='Basic porcelain support for subtrees + +This test verifies the basic operation of the add, merge, split, pull, +and push subcommands of git subtree. +' + +TEST_DIRECTORY=$(pwd)/../../../t +. "$TEST_DIRECTORY"/test-lib.sh + +# Use our own wrapper around test-lib.sh's test_create_repo, in order +# to set log.date=relative. `git subtree` parses the output of `git +# log`, and so it must be careful to not be affected by settings that +# change the `git log` output. We test this by setting +# log.date=relative for every repo in the tests. +subtree_test_create_repo () { + test_create_repo "$1" && + git -C "$1" config log.date relative +} + +test_create_commit () ( + repo=$1 && + commit=$2 && + cd "$repo" && + mkdir -p "$(dirname "$commit")" \ + || error "Could not create directory for commit" + echo "$commit" >"$commit" && + git add "$commit" || error "Could not add commit" + git commit -m "$commit" || error "Could not commit" +) + +test_wrong_flag() { + test_must_fail "$@" >out 2>err && + test_must_be_empty out && + grep "flag does not make sense with" err +} + +last_commit_subject () { + git log --pretty=format:%s -1 +} + +# Upon 'git subtree add|merge --squash' of an annotated tag, +# pre-2.32.0 versions of 'git subtree' would write the hash of the tag +# (sub1 below), instead of the commit (sub1^{commit}) in the +# "git-subtree-split" trailer. +# We immitate this behaviour below using a replace ref. +# This function creates 3 repositories: +# - $1 +# - $1-sub (added as subtree "sub" in $1) +# - $1-clone (clone of $1) +test_create_pre2_32_repo () { + subtree_test_create_repo "$1" && + subtree_test_create_repo "$1-sub" && + test_commit -C "$1" main1 && + test_commit -C "$1-sub" --annotate sub1 && + git -C "$1" subtree add --prefix="sub" --squash "../$1-sub" sub1 && + tag=$(git -C "$1" rev-parse FETCH_HEAD) && + commit=$(git -C "$1" rev-parse FETCH_HEAD^{commit}) && + git -C "$1" log -1 --format=%B HEAD^2 >msg && + test_commit -C "$1-sub" --annotate sub2 && + git clone --no-local "$1" "$1-clone" && + new_commit=$(cat msg | sed -e "s/$commit/$tag/" | git -C "$1-clone" commit-tree HEAD^2^{tree}) && + git -C "$1-clone" replace HEAD^2 $new_commit +} + +test_expect_success 'shows short help text for -h' ' + test_expect_code 129 git subtree -h >out 2>err && + test_must_be_empty err && + grep -e "^ *or: git subtree pull" out && + grep -F -e "--[no-]annotate" out +' + +# +# Tests for 'git subtree add' +# + +test_expect_success 'no merge from non-existent subtree' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + test_must_fail git subtree merge --prefix="sub dir" FETCH_HEAD + ) +' + +test_expect_success 'no pull from non-existent subtree' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + test_must_fail git subtree pull --prefix="sub dir" ./"sub proj" HEAD + ) +' + +test_expect_success 'add rejects flags for split' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + test_wrong_flag git subtree add --prefix="sub dir" --annotate=foo FETCH_HEAD && + test_wrong_flag git subtree add --prefix="sub dir" --branch=foo FETCH_HEAD && + test_wrong_flag git subtree add --prefix="sub dir" --ignore-joins FETCH_HEAD && + test_wrong_flag git subtree add --prefix="sub dir" --onto=foo FETCH_HEAD && + test_wrong_flag git subtree add --prefix="sub dir" --rejoin FETCH_HEAD + ) +' + +test_expect_success 'add subproj as subtree into sub dir/ with --prefix' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD && + test "$(last_commit_subject)" = "Add '\''sub dir/'\'' from commit '\''$(git rev-parse FETCH_HEAD)'\''" + ) +' + +test_expect_success 'add subproj as subtree into sub dir/ with --prefix and --message' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" --message="Added subproject" FETCH_HEAD && + test "$(last_commit_subject)" = "Added subproject" + ) +' + +test_expect_success 'add subproj as subtree into sub dir/ with --prefix as -P and --message as -m' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add -P "sub dir" -m "Added subproject" FETCH_HEAD && + test "$(last_commit_subject)" = "Added subproject" + ) +' + +test_expect_success 'add subproj as subtree into sub dir/ with --squash and --prefix and --message' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" --message="Added subproject with squash" --squash FETCH_HEAD && + test "$(last_commit_subject)" = "Added subproject with squash" + ) +' + +# +# Tests for 'git subtree merge' +# + +test_expect_success 'merge rejects flags for split' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + test_wrong_flag git subtree merge --prefix="sub dir" --annotate=foo FETCH_HEAD && + test_wrong_flag git subtree merge --prefix="sub dir" --branch=foo FETCH_HEAD && + test_wrong_flag git subtree merge --prefix="sub dir" --ignore-joins FETCH_HEAD && + test_wrong_flag git subtree merge --prefix="sub dir" --onto=foo FETCH_HEAD && + test_wrong_flag git subtree merge --prefix="sub dir" --rejoin FETCH_HEAD + ) +' + +test_expect_success 'merge new subproj history into sub dir/ with --prefix' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + test "$(last_commit_subject)" = "Merge commit '\''$(git rev-parse FETCH_HEAD)'\''" + ) +' + +test_expect_success 'merge new subproj history into sub dir/ with --prefix and --message' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" --message="Merged changes from subproject" FETCH_HEAD && + test "$(last_commit_subject)" = "Merged changes from subproject" + ) +' + +test_expect_success 'merge new subproj history into sub dir/ with --squash and --prefix and --message' ' + subtree_test_create_repo "$test_count/sub proj" && + subtree_test_create_repo "$test_count" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" --message="Merged changes from subproject using squash" --squash FETCH_HEAD && + test "$(last_commit_subject)" = "Merged changes from subproject using squash" + ) +' + +test_expect_success 'merge the added subproj again, should do nothing' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD && + # this shouldn not actually do anything, since FETCH_HEAD + # is already a parent + result=$(git merge -s ours -m "merge -s -ours" FETCH_HEAD) && + test "${result}" = "Already up to date." + ) +' + +test_expect_success 'merge new subproj history into subdir/ with a slash appended to the argument of --prefix' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/subproj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/subproj" sub1 && + ( + cd "$test_count" && + git fetch ./subproj HEAD && + git subtree add --prefix=subdir/ FETCH_HEAD + ) && + test_create_commit "$test_count/subproj" sub2 && + ( + cd "$test_count" && + git fetch ./subproj HEAD && + git subtree merge --prefix=subdir/ FETCH_HEAD && + test "$(last_commit_subject)" = "Merge commit '\''$(git rev-parse FETCH_HEAD)'\''" + ) +' + +test_expect_success 'merge with --squash after annotated tag was added/merged with --squash pre-v2.32.0 ' ' + test_create_pre2_32_repo "$test_count" && + git -C "$test_count-clone" fetch "../$test_count-sub" sub2 && + test_must_fail git -C "$test_count-clone" subtree merge --prefix="sub" --squash FETCH_HEAD && + git -C "$test_count-clone" subtree merge --prefix="sub" --squash FETCH_HEAD "../$test_count-sub" +' + +# +# Tests for 'git subtree split' +# + +test_expect_success 'split requires option --prefix' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD && + echo "fatal: you must provide the --prefix option." >expected && + test_must_fail git subtree split >actual 2>&1 && + test_debug "printf '"expected: "'" && + test_debug "cat expected" && + test_debug "printf '"actual: "'" && + test_debug "cat actual" && + test_cmp expected actual + ) +' + +test_expect_success 'split requires path given by option --prefix must exist' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD && + echo "fatal: '\''non-existent-directory'\'' does not exist; use '\''git subtree add'\''" >expected && + test_must_fail git subtree split --prefix=non-existent-directory >actual 2>&1 && + test_debug "printf '"expected: "'" && + test_debug "cat expected" && + test_debug "printf '"actual: "'" && + test_debug "cat actual" && + test_cmp expected actual + ) +' + +test_expect_success 'split rejects flags for add' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + split_hash=$(git subtree split --prefix="sub dir" --annotate="*") && + test_wrong_flag git subtree split --prefix="sub dir" --squash && + test_wrong_flag git subtree split --prefix="sub dir" --message=foo + ) +' + +test_expect_success 'split sub dir/ with --rejoin' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + split_hash=$(git subtree split --prefix="sub dir" --annotate="*") && + git subtree split --prefix="sub dir" --annotate="*" --rejoin && + test "$(last_commit_subject)" = "Split '\''sub dir/'\'' into commit '\''$split_hash'\''" + ) +' + +test_expect_success 'split sub dir/ with --rejoin from scratch' ' + subtree_test_create_repo "$test_count" && + test_create_commit "$test_count" main1 && + ( + cd "$test_count" && + mkdir "sub dir" && + echo file >"sub dir"/file && + git add "sub dir/file" && + git commit -m"sub dir file" && + split_hash=$(git subtree split --prefix="sub dir" --rejoin) && + git subtree split --prefix="sub dir" --rejoin && + test "$(last_commit_subject)" = "Split '\''sub dir/'\'' into commit '\''$split_hash'\''" + ) +' + +test_expect_success 'split sub dir/ with --rejoin and --message' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + git subtree split --prefix="sub dir" --message="Split & rejoin" --annotate="*" --rejoin && + test "$(last_commit_subject)" = "Split & rejoin" + ) +' + +test_expect_success 'split "sub dir"/ with --rejoin and --squash' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" --squash FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git subtree pull --prefix="sub dir" --squash ./"sub proj" HEAD && + MAIN=$(git rev-parse --verify HEAD) && + SUB=$(git -C "sub proj" rev-parse --verify HEAD) && + + SPLIT=$(git subtree split --prefix="sub dir" --annotate="*" --rejoin --squash) && + + test_must_fail git merge-base --is-ancestor $SUB HEAD && + test_must_fail git merge-base --is-ancestor $SPLIT HEAD && + git rev-list HEAD ^$MAIN >commit-list && + test_line_count = 2 commit-list && + test "$(git rev-parse --verify HEAD:)" = "$(git rev-parse --verify $MAIN:)" && + test "$(git rev-parse --verify HEAD:"sub dir")" = "$(git rev-parse --verify $SPLIT:)" && + test "$(git rev-parse --verify HEAD^1)" = $MAIN && + test "$(git rev-parse --verify HEAD^2)" != $SPLIT && + test "$(git rev-parse --verify HEAD^2:)" = "$(git rev-parse --verify $SPLIT:)" && + test "$(last_commit_subject)" = "Split '\''sub dir/'\'' into commit '\''$SPLIT'\''" + ) +' + +test_expect_success 'split then pull "sub dir"/ with --rejoin and --squash' ' + # 1. "add" + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + git -C "$test_count" subtree --prefix="sub dir" add --squash ./"sub proj" HEAD && + + # 2. commit from parent + test_create_commit "$test_count" "sub dir"/main-sub1 && + + # 3. "split --rejoin --squash" + git -C "$test_count" subtree --prefix="sub dir" split --rejoin --squash && + + # 4. "pull --squash" + test_create_commit "$test_count/sub proj" sub2 && + git -C "$test_count" subtree -d --prefix="sub dir" pull --squash ./"sub proj" HEAD && + + test_must_fail git merge-base HEAD FETCH_HEAD +' + +test_expect_success 'split "sub dir"/ with --branch' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + split_hash=$(git subtree split --prefix="sub dir" --annotate="*") && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br && + test "$(git rev-parse subproj-br)" = "$split_hash" + ) +' + +test_expect_success 'check hash of split' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + split_hash=$(git subtree split --prefix="sub dir" --annotate="*") && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br && + test "$(git rev-parse subproj-br)" = "$split_hash" && + # Check hash of split + new_hash=$(git rev-parse subproj-br^2) && + ( + cd ./"sub proj" && + subdir_hash=$(git rev-parse HEAD) && + test "$new_hash" = "$subdir_hash" + ) + ) +' + +test_expect_success 'split "sub dir"/ with --branch for an existing branch' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git branch subproj-br FETCH_HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + split_hash=$(git subtree split --prefix="sub dir" --annotate="*") && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br && + test "$(git rev-parse subproj-br)" = "$split_hash" + ) +' + +test_expect_success 'split "sub dir"/ with --branch for an incompatible branch' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git branch init HEAD && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + test_must_fail git subtree split --prefix="sub dir" --branch init + ) +' + +test_expect_success 'split after annotated tag was added/merged with --squash pre-v2.32.0' ' + test_create_pre2_32_repo "$test_count" && + test_must_fail git -C "$test_count-clone" subtree split --prefix="sub" HEAD && + git -C "$test_count-clone" subtree split --prefix="sub" HEAD "../$test_count-sub" +' + +# +# Tests for 'git subtree pull' +# + +test_expect_success 'pull requires option --prefix' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub2 && + ( + cd "$test_count" && + test_must_fail git subtree pull ./"sub proj" HEAD >out 2>err && + + echo "fatal: you must provide the --prefix option." >expected && + test_must_be_empty out && + test_cmp expected err + ) +' + +test_expect_success 'pull requires path given by option --prefix must exist' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + test_must_fail git subtree pull --prefix="sub dir" ./"sub proj" HEAD >out 2>err && + + echo "fatal: '\''sub dir'\'' does not exist; use '\''git subtree add'\''" >expected && + test_must_be_empty out && + test_cmp expected err + ) +' + +test_expect_success 'pull basic operation' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub2 && + ( + cd "$test_count" && + exp=$(git -C "sub proj" rev-parse --verify HEAD:) && + git subtree pull --prefix="sub dir" ./"sub proj" HEAD && + act=$(git rev-parse --verify HEAD:"sub dir") && + test "$act" = "$exp" + ) +' + +test_expect_success 'pull rejects flags for split' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub2 && + ( + test_must_fail git subtree pull --prefix="sub dir" --annotate=foo ./"sub proj" HEAD && + test_must_fail git subtree pull --prefix="sub dir" --branch=foo ./"sub proj" HEAD && + test_must_fail git subtree pull --prefix="sub dir" --ignore-joins ./"sub proj" HEAD && + test_must_fail git subtree pull --prefix="sub dir" --onto=foo ./"sub proj" HEAD && + test_must_fail git subtree pull --prefix="sub dir" --rejoin ./"sub proj" HEAD + ) +' + +test_expect_success 'pull with --squash after annotated tag was added/merged with --squash pre-v2.32.0 ' ' + test_create_pre2_32_repo "$test_count" && + git -C "$test_count-clone" subtree -d pull --prefix="sub" --squash "../$test_count-sub" sub2 +' + +# +# Tests for 'git subtree push' +# + +test_expect_success 'push requires option --prefix' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD && + echo "fatal: you must provide the --prefix option." >expected && + test_must_fail git subtree push "./sub proj" from-mainline >actual 2>&1 && + test_debug "printf '"expected: "'" && + test_debug "cat expected" && + test_debug "printf '"actual: "'" && + test_debug "cat actual" && + test_cmp expected actual + ) +' + +test_expect_success 'push requires path given by option --prefix must exist' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD && + echo "fatal: '\''non-existent-directory'\'' does not exist; use '\''git subtree add'\''" >expected && + test_must_fail git subtree push --prefix=non-existent-directory "./sub proj" from-mainline >actual 2>&1 && + test_debug "printf '"expected: "'" && + test_debug "cat expected" && + test_debug "printf '"actual: "'" && + test_debug "cat actual" && + test_cmp expected actual + ) +' + +test_expect_success 'push rejects flags for add' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + test_wrong_flag git subtree split --prefix="sub dir" --squash ./"sub proj" from-mainline && + test_wrong_flag git subtree split --prefix="sub dir" --message=foo ./"sub proj" from-mainline + ) +' + +test_expect_success 'push basic operation' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + before=$(git rev-parse --verify HEAD) && + split_hash=$(git subtree split --prefix="sub dir") && + git subtree push --prefix="sub dir" ./"sub proj" from-mainline && + test "$before" = "$(git rev-parse --verify HEAD)" && + test "$split_hash" = "$(git -C "sub proj" rev-parse --verify refs/heads/from-mainline)" + ) +' + +test_expect_success 'push sub dir/ with --rejoin' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + split_hash=$(git subtree split --prefix="sub dir" --annotate="*") && + git subtree push --prefix="sub dir" --annotate="*" --rejoin ./"sub proj" from-mainline && + test "$(last_commit_subject)" = "Split '\''sub dir/'\'' into commit '\''$split_hash'\''" && + test "$split_hash" = "$(git -C "sub proj" rev-parse --verify refs/heads/from-mainline)" + ) +' + +test_expect_success 'push sub dir/ with --rejoin from scratch' ' + subtree_test_create_repo "$test_count" && + test_create_commit "$test_count" main1 && + ( + cd "$test_count" && + mkdir "sub dir" && + echo file >"sub dir"/file && + git add "sub dir/file" && + git commit -m"sub dir file" && + split_hash=$(git subtree split --prefix="sub dir" --rejoin) && + git init --bare "sub proj.git" && + git subtree push --prefix="sub dir" --rejoin ./"sub proj.git" from-mainline && + test "$(last_commit_subject)" = "Split '\''sub dir/'\'' into commit '\''$split_hash'\''" && + test "$split_hash" = "$(git -C "sub proj.git" rev-parse --verify refs/heads/from-mainline)" + ) +' + +test_expect_success 'push sub dir/ with --rejoin and --message' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + git subtree push --prefix="sub dir" --message="Split & rejoin" --annotate="*" --rejoin ./"sub proj" from-mainline && + test "$(last_commit_subject)" = "Split & rejoin" && + split_hash="$(git rev-parse --verify HEAD^2)" && + test "$split_hash" = "$(git -C "sub proj" rev-parse --verify refs/heads/from-mainline)" + ) +' + +test_expect_success 'push "sub dir"/ with --rejoin and --squash' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" --squash FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git subtree pull --prefix="sub dir" --squash ./"sub proj" HEAD && + MAIN=$(git rev-parse --verify HEAD) && + SUB=$(git -C "sub proj" rev-parse --verify HEAD) && + + SPLIT=$(git subtree split --prefix="sub dir" --annotate="*") && + git subtree push --prefix="sub dir" --annotate="*" --rejoin --squash ./"sub proj" from-mainline && + + test_must_fail git merge-base --is-ancestor $SUB HEAD && + test_must_fail git merge-base --is-ancestor $SPLIT HEAD && + git rev-list HEAD ^$MAIN >commit-list && + test_line_count = 2 commit-list && + test "$(git rev-parse --verify HEAD:)" = "$(git rev-parse --verify $MAIN:)" && + test "$(git rev-parse --verify HEAD:"sub dir")" = "$(git rev-parse --verify $SPLIT:)" && + test "$(git rev-parse --verify HEAD^1)" = $MAIN && + test "$(git rev-parse --verify HEAD^2)" != $SPLIT && + test "$(git rev-parse --verify HEAD^2:)" = "$(git rev-parse --verify $SPLIT:)" && + test "$(last_commit_subject)" = "Split '\''sub dir/'\'' into commit '\''$SPLIT'\''" && + test "$SPLIT" = "$(git -C "sub proj" rev-parse --verify refs/heads/from-mainline)" + ) +' + +test_expect_success 'push "sub dir"/ with --branch' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + split_hash=$(git subtree split --prefix="sub dir" --annotate="*") && + git subtree push --prefix="sub dir" --annotate="*" --branch subproj-br ./"sub proj" from-mainline && + test "$(git rev-parse subproj-br)" = "$split_hash" && + test "$split_hash" = "$(git -C "sub proj" rev-parse --verify refs/heads/from-mainline)" + ) +' + +test_expect_success 'check hash of push' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + split_hash=$(git subtree split --prefix="sub dir" --annotate="*") && + git subtree push --prefix="sub dir" --annotate="*" --branch subproj-br ./"sub proj" from-mainline && + test "$(git rev-parse subproj-br)" = "$split_hash" && + # Check hash of split + new_hash=$(git rev-parse subproj-br^2) && + ( + cd ./"sub proj" && + subdir_hash=$(git rev-parse HEAD) && + test "$new_hash" = "$subdir_hash" + ) && + test "$split_hash" = "$(git -C "sub proj" rev-parse --verify refs/heads/from-mainline)" + ) +' + +test_expect_success 'push "sub dir"/ with --branch for an existing branch' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git branch subproj-br FETCH_HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + split_hash=$(git subtree split --prefix="sub dir" --annotate="*") && + git subtree push --prefix="sub dir" --annotate="*" --branch subproj-br ./"sub proj" from-mainline && + test "$(git rev-parse subproj-br)" = "$split_hash" && + test "$split_hash" = "$(git -C "sub proj" rev-parse --verify refs/heads/from-mainline)" + ) +' + +test_expect_success 'push "sub dir"/ with --branch for an incompatible branch' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git branch init HEAD && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + test_must_fail git subtree push --prefix="sub dir" --branch init "./sub proj" from-mainline + ) +' + +test_expect_success 'push "sub dir"/ with a local rev' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + bad_tree=$(git rev-parse --verify HEAD:"sub dir") && + good_tree=$(git rev-parse --verify HEAD^:"sub dir") && + git subtree push --prefix="sub dir" --annotate="*" ./"sub proj" HEAD^:from-mainline && + split_tree=$(git -C "sub proj" rev-parse --verify refs/heads/from-mainline:) && + test "$split_tree" = "$good_tree" + ) +' + +test_expect_success 'push after annotated tag was added/merged with --squash pre-v2.32.0' ' + test_create_pre2_32_repo "$test_count" && + test_create_commit "$test_count-clone" sub/main-sub1 && + git -C "$test_count-clone" subtree push --prefix="sub" "../$test_count-sub" from-mainline +' + +# +# Validity checking +# + +test_expect_success 'make sure exactly the right set of files ends up in the subproj' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count/sub proj" sub3 && + test_create_commit "$test_count" "sub dir"/main-sub3 && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count" "sub dir"/main-sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD && + + test_write_lines main-sub1 main-sub2 main-sub3 main-sub4 \ + sub1 sub2 sub3 sub4 >expect && + git ls-files >actual && + test_cmp expect actual + ) +' + +test_expect_success 'make sure the subproj *only* contains commits that affect the "sub dir"' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count/sub proj" sub3 && + test_create_commit "$test_count" "sub dir"/main-sub3 && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count" "sub dir"/main-sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD && + + test_write_lines main-sub1 main-sub2 main-sub3 main-sub4 \ + sub1 sub2 sub3 sub4 >expect && + git log --name-only --pretty=format:"" >log && + sort <log | sed "/^\$/ d" >actual && + test_cmp expect actual + ) +' + +test_expect_success 'make sure exactly the right set of files ends up in the mainline' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count/sub proj" sub3 && + test_create_commit "$test_count" "sub dir"/main-sub3 && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count" "sub dir"/main-sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD + ) && + ( + cd "$test_count" && + git subtree pull --prefix="sub dir" ./"sub proj" HEAD && + + test_write_lines main1 main2 >chkm && + test_write_lines main-sub1 main-sub2 main-sub3 main-sub4 >chkms && + sed "s,^,sub dir/," chkms >chkms_sub && + test_write_lines sub1 sub2 sub3 sub4 >chks && + sed "s,^,sub dir/," chks >chks_sub && + + cat chkm chkms_sub chks_sub >expect && + git ls-files >actual && + test_cmp expect actual + ) +' + +test_expect_success 'make sure each filename changed exactly once in the entire history' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git config log.date relative && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count/sub proj" sub3 && + test_create_commit "$test_count" "sub dir"/main-sub3 && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count" "sub dir"/main-sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD + ) && + ( + cd "$test_count" && + git subtree pull --prefix="sub dir" ./"sub proj" HEAD && + + test_write_lines main1 main2 >chkm && + test_write_lines sub1 sub2 sub3 sub4 >chks && + test_write_lines main-sub1 main-sub2 main-sub3 main-sub4 >chkms && + sed "s,^,sub dir/," chkms >chkms_sub && + + # main-sub?? and /"sub dir"/main-sub?? both change, because those are the + # changes that were split into their own history. And "sub dir"/sub?? never + # change, since they were *only* changed in the subtree branch. + git log --name-only --pretty=format:"" >log && + sort <log >sorted-log && + sed "/^$/ d" sorted-log >actual && + + cat chkms chkm chks chkms_sub >expect-unsorted && + sort expect-unsorted >expect && + test_cmp expect actual + ) +' + +test_expect_success 'make sure the --rejoin commits never make it into subproj' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count/sub proj" sub3 && + test_create_commit "$test_count" "sub dir"/main-sub3 && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count" "sub dir"/main-sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD + ) && + ( + cd "$test_count" && + git subtree pull --prefix="sub dir" ./"sub proj" HEAD && + test "$(git log --pretty=format:"%s" HEAD^2 | grep -i split)" = "" + ) +' + +test_expect_success 'make sure no "git subtree" tagged commits make it into subproj' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count/sub proj" sub3 && + test_create_commit "$test_count" "sub dir"/main-sub3 && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + test_create_commit "$test_count" "sub dir"/main-sub4 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --annotate="*" --branch subproj-br --rejoin + ) && + ( + cd "$test_count/sub proj" && + git fetch .. subproj-br && + git merge FETCH_HEAD + ) && + ( + cd "$test_count" && + git subtree pull --prefix="sub dir" ./"sub proj" HEAD && + + # They are meaningless to subproj since one side of the merge refers to the mainline + test "$(git log --pretty=format:"%s%n%b" HEAD^2 | grep "git-subtree.*:")" = "" + ) +' + +# +# A new set of tests +# + +test_expect_success 'make sure "git subtree split" find the correct parent' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git branch subproj-ref FETCH_HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --branch subproj-br && + + # at this point, the new commit parent should be subproj-ref, if it is + # not, something went wrong (the "newparent" of "HEAD~" commit should + # have been sub2, but it was not, because its cache was not set to + # itself) + test "$(git log --pretty=format:%P -1 subproj-br)" = "$(git rev-parse subproj-ref)" + ) +' + +test_expect_success 'split a new subtree without --onto option' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count/sub proj" sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --branch subproj-br + ) && + mkdir "$test_count"/"sub dir2" && + test_create_commit "$test_count" "sub dir2"/main-sub2 && + ( + cd "$test_count" && + + # also test that we still can split out an entirely new subtree + # if the parent of the first commit in the tree is not empty, + # then the new subtree has accidentally been attached to something + git subtree split --prefix="sub dir2" --branch subproj2-br && + test "$(git log --pretty=format:%P -1 subproj2-br)" = "" + ) +' + +test_expect_success 'verify one file change per commit' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git branch sub1 FETCH_HEAD && + git subtree add --prefix="sub dir" sub1 + ) && + test_create_commit "$test_count/sub proj" sub2 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir" --branch subproj-br + ) && + mkdir "$test_count"/"sub dir2" && + test_create_commit "$test_count" "sub dir2"/main-sub2 && + ( + cd "$test_count" && + git subtree split --prefix="sub dir2" --branch subproj2-br && + + git log --format="%H" >commit-list && + while read commit + do + git log -n1 --format="" --name-only "$commit" >file-list && + test_line_count -le 1 file-list || return 1 + done <commit-list + ) +' + +test_expect_success 'push split to subproj' ' + subtree_test_create_repo "$test_count" && + subtree_test_create_repo "$test_count/sub proj" && + test_create_commit "$test_count" main1 && + test_create_commit "$test_count/sub proj" sub1 && + ( + cd "$test_count" && + git fetch ./"sub proj" HEAD && + git subtree add --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub1 && + test_create_commit "$test_count" main2 && + test_create_commit "$test_count/sub proj" sub2 && + test_create_commit "$test_count" "sub dir"/main-sub2 && + ( + cd $test_count/"sub proj" && + git branch sub-branch-1 && + cd .. && + git fetch ./"sub proj" HEAD && + git subtree merge --prefix="sub dir" FETCH_HEAD + ) && + test_create_commit "$test_count" "sub dir"/main-sub3 && + ( + cd "$test_count" && + git subtree push ./"sub proj" --prefix "sub dir" sub-branch-1 && + cd ./"sub proj" && + git checkout sub-branch-1 && + test "$(last_commit_subject)" = "sub dir/main-sub3" + ) +' + +# +# This test covers 2 cases in subtree split copy_or_skip code +# 1) Merges where one parent is a superset of the changes of the other +# parent regarding changes to the subtree, in this case the merge +# commit should be copied +# 2) Merges where only one parent operate on the subtree, and the merge +# commit should be skipped +# +# (1) is checked by ensuring subtree_tip is a descendent of subtree_branch +# (2) should have a check added (not_a_subtree_change shouldn't be present +# on the produced subtree) +# +# Other related cases which are not tested (or currently handled correctly) +# - Case (1) where there are more than 2 parents, it will sometimes correctly copy +# the merge, and sometimes not +# - Merge commit where both parents have same tree as the merge, currently +# will always be skipped, even if they reached that state via different +# set of commits. +# + +test_expect_success 'subtree descendant check' ' + subtree_test_create_repo "$test_count" && + defaultBranch=$(sed "s,ref: refs/heads/,," "$test_count/.git/HEAD") && + test_create_commit "$test_count" folder_subtree/a && + ( + cd "$test_count" && + git branch branch + ) && + test_create_commit "$test_count" folder_subtree/0 && + test_create_commit "$test_count" folder_subtree/b && + cherry=$(cd "$test_count" && git rev-parse HEAD) && + ( + cd "$test_count" && + git checkout branch + ) && + test_create_commit "$test_count" commit_on_branch && + ( + cd "$test_count" && + git cherry-pick $cherry && + git checkout $defaultBranch && + git merge -m "merge should be kept on subtree" branch && + git branch no_subtree_work_branch + ) && + test_create_commit "$test_count" folder_subtree/d && + ( + cd "$test_count" && + git checkout no_subtree_work_branch + ) && + test_create_commit "$test_count" not_a_subtree_change && + ( + cd "$test_count" && + git checkout $defaultBranch && + git merge -m "merge should be skipped on subtree" no_subtree_work_branch && + + git subtree split --prefix folder_subtree/ --branch subtree_tip $defaultBranch && + git subtree split --prefix folder_subtree/ --branch subtree_branch branch && + test $(git rev-list --count subtree_tip..subtree_branch) = 0 + ) +' + +test_done |